National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Extreme Heat Continues; Severe Thunderstorms into Upper Midwest; Strong Bering Sea Storm

Wildfires and poor air quality continue for the Pacific Northwest, Rockies and extended into the Plains. Severe thunderstorms possible for the northern Plains and upper Midwest on Monday along a frontal boundary. Another boundary will focus showers and thunderstorms for the eastern seaboard with localized heavy rainfall possible. For Alaska, a strong Bering Sea storm will bring winds and rainfall. Read More >

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

Lat: 39.12583°NLon: 123.07333°WElev: 3355.0ft.

NA

79°F

26°C

Humidity 33%
Wind Speed NW 14 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Heat Index79°F (26°C)
Last update 02 Aug 09:01 PM PDT
Extended Forecast for

10 Miles NNW Lakeport CA

Heat Advisory August 3, 11:00am until August 4, 11:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 64. West northwest wind 5 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 103. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 103 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. West northwest wind 5 to 9 mph becoming north after midnight.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 102. Calm wind becoming south 5 to 7 mph in the morning.

    High: 102 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 65. West southwest wind 5 to 9 mph becoming calm after midnight.

    Low: 65 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 64. West northwest wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 103. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 68. West northwest wind 5 to 9 mph becoming north after midnight.
Tuesday
Sunny and hot, with a high near 102. Calm wind becoming south 5 to 7 mph in the morning.
Tuesday Night
Clear, with a low around 65. West southwest wind 5 to 9 mph becoming calm after midnight.
Wednesday
Sunny and hot, with a high near 100. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Clear, with a low around 66.
Friday
Sunny and hot, with a high near 101.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Clear, with a low around 64.
Sunday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Lakeport CA
 39.17°N 122.98°W (Elev. 1998 ft)
Last Update:
2:10 pm PDT Aug 2, 2026
Forecast Valid:
9pm PDT Aug 2, 2026-6pm PDT Aug 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation